Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
14th Edition
ISBN: 9781305775480
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 25, Problem 10SQ
Summary Introduction
Concept introduction: The birds in order to avoid competition on land, they evolved the volant adaptation. To suit the volant adaptation, they developed wings that are made up of feathers, and this helps the birds to fly. The hair and fur of the mammals cover the epidermis and insulate the internal anatomy from the harsh and cold environment that is found outside. Both the hair and feather are made up of a protein known as keratin.
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Blood cells develop from stem cells in_____ . a. epidermis c. cartilage b. dermis d. bone
The most abundant protein in your body is_______ . a. melanin c. collagen b. elastin d. keratin
1. A)
A major function of the skin is protection from ______.
A.
abrasion
B.
ultraviolet light
C.
entry of a microorganism
D.
dehydration
E.
All of the above
B)
What is one important function of melanin?
A.
Resets the diurnal biological clock
B.
Increases the amount of blood vessels
C.
Causes the skin to become cooler
D.
Absorbs harmful radiation
E.
Strengthens the skin or eyes
C)
Most of the cells of the epidermis are ________________.
A.
fibroblasts
B.
keratinocytes
C.
macrophages
D.
Langerhans cells
D)
The epidermis is nourished by diffusion from capillaries in the ___________.
A.
papillary layer of the dermis
B.
hypodermis
C.
epidermis
D.
reticular layer of the dermis
E)
Cell division occurs in which layer of the epidermis?
A.
Stratum lucidum
B.
Stratum corneum
C.
Stratum basale
D.
Stratum granulosum
F)
Which of the following is NOT…
Chapter 25 Solutions
Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
Ch. 25 - Prob. 1SQCh. 25 - Which of the traits listed above are retained by...Ch. 25 - Vertebrate jaw banes evolved from ___ . a. gill...Ch. 25 - Prob. 4SQCh. 25 - Prob. 1DAACh. 25 - Prob. 2DAACh. 25 - Prob. 3DAACh. 25 - Prob. 4DAACh. 25 - Tetra pods evolved from ___ . a. sharks b....Ch. 25 - Turtles, Lizards, and birds belong to one major...
Ch. 25 - Reptiles are adapted to life on land by _____. a....Ch. 25 - Prob. 8SQCh. 25 - Prob. 9SQCh. 25 - Prob. 10SQCh. 25 - Prob. 11SQCh. 25 - Prob. 12SQCh. 25 - Prob. 13SQCh. 25 - Prob. 14SQCh. 25 - Arrange the groups in order in which they evolved....Ch. 25 - In 1798, a stuffed platypus specimen was delivered...Ch. 25 - Controlling forbody size, would you expect a...Ch. 25 - Why is it more difficult to determine the sex of a...
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- Which of the following is responsiblefor giving colour to human skin?A. Luciferin B. HaemoglobinC. Flavonoids D. Melaninarrow_forward2. A) Keratinization involves skin cells moving to the surface that have _________________. A. lost water and changed nuclei B. lost fat and increased mitochondria C. lost the stratum basale D. lost the stratum lucidum and increased the amount of protein, keratin E. None of the above B) The layer of the skin composed of dense connective tissue that has projections known as papillae is the ____________. A. stratum corneum B. hypodermis C. stratum basale D. dermis C) Sebaceous glands are located in the __________, are associated with the __________, and secrete ________. A. epidermis, hair follicle, oil B. papillary layer, skin cells, oil C. dermis, hair follicle, sebum D. epidermis, hair follicle, sebum E. dermis, nail bed, sebum D) Which is not the function of the dermis layer? A. Regulates temperature by sweat glands and blood vessel dilation or constriction B. Responds to…arrow_forwardThe fiber type that gives connective tissue great tensile strength is _________ a.reticular b.elastic c.muscle d.collagenarrow_forward
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